Yarn-coating device.



W. R. DENIVAN.

YARN COMING DEVICE.

APPLICATION HLED lum/21.1915.

Patenled. Nov. 28, 1916.

Wm MQW Ml w @madam M WALTER 1t. NEWMAN, OF AKRON, OHIO, ASSIGNOR '10 THE MILLER RUBBER COMPNW', 01E AKRON, OHIO, A CORPORATION OF OHIO.

YARN-CDATING DEVICE,

Patented Non. 2a, 19in.

Application filed July 27, 1916. Serial No. 111,674.

To all 'whom t may concern Beit known that li, WALTER R. DENMAN, a citizen of the United States, and resident of Akron, Ohio, have invented certain new and useful Improvements in Yarn-Coating Devices, of which the following is a speciication.

My present invention relates to improvements in yarn or thread coating apparatus and has among its objects to provide a simple, economical, and eiiicient form of means by which a maximum number of threads may be immersed for a considerable period while on their way to the twisting apparatus without requiring an excessive quantity of coating or impregnating material.

Another object is to provide an apparatus for the purpose described, which will occupy a minimum amount of space and which can be easily and quickly manipulated. j

1 have also designed the apparatus with a view to facilitating the passage of any knots in the thread without breakage while at the same time removing any surplus coating medium. v

.With these and other objects in view the invention includes the novel features of construction and arrangement and combination of parts hereinafter described and particularly defined by the appended claims.

An embodiment of my invention is illustrated in' the accompanying. drawings, in

which- Figure l is a'front view of my preferredt drawing, the 'numeral 1 designates a tank provided with spacing devices such as pins' t, lbetween which the individual threads pass. From this edge the threads pass downward through one leg of the tank, around beneath the upper curved wall of its lower part, and vthence up through the other leg to its upper edge, where they pass over a rounded bearing surface, such as ahorizontal pipe 5, whence they are led to the drying oven or other point of further treatment or use (not shown). By providing a tank of U-shape having the spaced upright chambers of material height cornmunicating at the bottom, I am enabled to subject a very long portion of each thread to the impregnating or coating action, and thus may impart considerable 4speed tm the thread feeding devices.` Further l provide a tank which occupies but little floor space and which also does not require an excessive amount of liquid to fill it to the required height.

'lo enable the advanced ends of the threads to be passed through the tank, a

vshaft 6 is journaled in suitable bearing plates 7 which arebolted to the upper end edges of the tank so as to be capable of vertical adjustment. -Secured at or near opposite ends of this shaft are a pair of sprocket wheels 8, over whichpass endless chains 9 which extend down through the vertical legs of the trough and through the bottom portionlyingl beneath the curved inner wall-1a. These chains carry a cross bar 10 provided with a plurality of spaced hooks 11 corresponding in number to the numberof threads to be treated. When the threads are to be passed through the tank their advanced ends are connected with the hooks 1l and the shaft 6 is then rotated by handle 6a in the direction of the arrow to cause the chains to carry the bar 10 from the position shown in Fig. 2 down the descendand up the ascending side until the hooks appear. above the bar or tube 5, when the thread ends can be disconnected and-'connected to the winding roller or other device (not shown). l

In front of the guideroller arearrangcd a plurality of bearing plates or members 12, one for each thread, each having a thread receiving groove 12El in its upper face. These are secured to the upper edge of the tank by bolts passing through ver-y tically ielongated slots which permit vertical adjustment of the bearing members.

Above each bearing plate ormember 12 is the inclined rear face of the bearing member to the point 12b in which it terminates and will then drop back into the tank. Any knots passing through the groove in 12 and 13 will act against spring 18 and cause member 13 to raise slightly, thus enlarging the groove opening.

To enable thethreads to be readily passed through between members 12 and 13 after they have been disconnected from eyes 11, as above described, I provide each arm 13 with a lug or dog 13 designed to engage, when the armis lifted, with a spring pawl 15, whereby said arm will be held elevated. A

v projection 15a on the pawl enables -it to be lifted `to release the arm and allow it to drop into yarn-engaging position.

A convenient manner of mounting the dog is to provide it on its 'under surface with a pair of projections 15b engaging corresponding recesses in the supporting bar. 16 and yieldingly hold it in place by a bolt 17 connected through spring 18 With an eye 19 secured in arm 13, the nut 20 onbolt enabling the tension of the spring to be adjusted. As the dog raises it will simply rock on its rearmost projection as a pivot. It will thus be seen that spring 18 serves two purposes as described.

While I have described my device as in connection with the coating or impregnation of threads o-r yarns, it will be understood that I do not limit myself to such use.

1. Apparatus for coating or impregnating threads and the like comprising a substantially U-shaped tank having guides at its outer upper edges, endless carriers arranged to travel through said tank, a bar carried by said carriers, and means for securing thel threads to said bar.

2. Apparatus for coating or impregnating Y threads or the like comprising inner and outer walls of U-shape with space between for coating medium, thread guides at the outer upper edges of the tank, a shaft joui'- naled over the space between the inner walls, sprocket wheels carried by said shaft, endless sprocket chains passing over said wheels and through said tank, a bar carried by said chains, and means for securing the thread ends to said bar.

3. Apparatus for coating or impregnating threads or the like comprising a substantially U-shaped tank having guides at its upper outer edges, endless carriers arranged to travel through said tank, a bar carried by said carriers, means for temporarily securing the threads to said bar, presser devices arranged to bear on the thread on the delivery side, and means for holding said presser devices out of contact with the thread at will.

- 4. Apparatus for coating or in'ipregnating threads and the like comprising an impregnation tank, means for passing thread therethrough, guide means on the delivery side over which the thread passes, a plurality of yielding presser devices for pressing on the threads, and pawls for holding said devices away from the threads.

Apparatus for coating or impregnating threads and the like comprising an impregnationtank, means for passing thread therethrough, a plurality of thread guides on the delivery side of said tank, pivoted arms carrying presser portions cooperating with said guides, and means for holding said' pivoted arms elevated at will.

6. Apparatus for coating or impregnating threads and the like comprising an impregnation tank, a plurality of individually vertically adjustable members on the delivery side thereof, having thread guiding grooves, a plurality of pivoted arms having portions adapted to coperate with said members, and means for holding said arms elevated. 7. Apparatus for coating or impregnating threads and the like comprising an impregnation tank, a plurality of individually vertically adjustable members on the delivery side thereof having thread guiding grooves., and having inclined pointed portions for returning surplus solution to the tank.

In testimony whereof, I affix my signature.

WALTER R. DENMAN.

Witnesses: I

C. A. WOLF, STANLEY KIMBALL. 

